CN2208027Y

CN2208027Y - Safety auxiliary device for speed regulator of elevator

Info

Publication number: CN2208027Y
Application number: CN 94224778
Authority: CN
Inventors: 王秋楠
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-05
Filing date: 1994-08-05
Publication date: 1995-09-20
Anticipated expiration: 2004-08-05

Abstract

The utility model relates to a safety auxiliary device for a speed regulator of an elevator. The safety auxiliary device for a speed regulator of an elevator is composed of an electric appliance type control device, a mechanical centrifugal type speed controlling device, a passenger compartment, a steel cable, a braking device, a braking drive member, etc. The utility model is characterized in that the action end of the braking drive member is provided with an electromagnetic operating draw rod which is controlled by a controller, and the sense end of the controller is a weight sensor which is arranged at the bottom end of the passenger compartment of an elevator and receives a superheavy signal at any moment to control the action of the electromagnetic operating draw rod; so the passenger compartment can be quickly braked. Thereby, the utility model can prevent the passenger compartment from falling for an instant which is resulted from overload.

Description

Safety auxiliary device for speed regulator of elevator

The utility model relates to the accessory equipment of elevator, refers to a kind of dangerous elevator governor safety auxiliary device of elevator cage moment overload tenesmus that prevents especially.

In the prior art, elevator governor (consulting Fig. 1) is with electrical equipment formula speed-controlling device 10 and mechanical centrifugal speed-controlling device 20, and compartment brake cable 30 is played the effect of folder lock control, and brake gear 2 is carried out the brake task, avoids the speed of a motor vehicle danger that causes out of control.According to the CNS standard, compartment 1 speed of travel, as if 30 percent o'clock that surpasses predetermined speed, the memory switch 11 of electrical equipment formula speed-controlling device 10 can start, and drove brake shoes 23 by the brake gear on the compartment 12 and pressed from both sides lock cable wires 30.(referring to Fig. 3,4), if compartment 1 speed of a motor vehicle surpasses predetermined speed 40 percent o'clock, the centrifugal speed-controlling device 20 of machinery can be brought into play braking action, increasing gradually with centnifugal force, push the restriction of brake Transmission 22 pairs of brake shoes 23 open by its centrifugal pushing block 21, form the brake shoes 23 folders cable wire 30 of pulling and reach braking action compartment 1.

Yet, general at present stall accident of weighing down the railway carriage or compartment, major part is because of overweight the causing of compartment moment carrying, especially refer to cargo lift, though with alarm bell (lamp) and block motor power, avoid the danger that overloads, though motor stall brake system has been checked the cable wire wheel, but when the load weight in compartment 1 surpasses this braking action power (i.e. this friction force), can't limit the compartment and glide, compartment 1 has weighed down to bottom.Be that governor must surpass at 30,40 percent o'clock in the speed of a motor vehicle and just carry out compartment 1 brake control speed, often have little time to produce the hypervelocity brake before, the compartment has caused born accident.

The purpose of this utility model is to provide a kind of elevator cage dangerous situation of moment overload tenesmus of preventing to take place, and a safe auxiliary device is set on known elevator governor, produces with the situation of avoiding the compartment tenesmus.

The purpose of this utility model is achieved in that a kind of elevator governor safety auxiliary device is by electrical equipment formula speed-controlling device, the centrifugal speed-controlling device of machinery, the compartment, cable wire, brake gear, compositions such as brake Transmission, it is characterized in that: the effect end at the brake Transmission, an electromagnetic activation pull bar is set, this electromagnetic activation pull bar is controlled by a controller, and the controller induction end is a weight induction device, is arranged on the bottom, elevator cage.

Advantage of the present utility model is: when compartment moment is born overweight load, this controller is received the overweight signal of weight induction device immediately, control electromagnetic activation backward stick action, draw the brake Transmission of pulling, cause the compartment brake gear to affect cable wire, be subjected to the pull effect of locking cable wire of brake shoes folder, reach the purpose of compartment brake rapidly, thereby avoided the situation of compartment moment overload to take place.

Concrete structure of the present utility model further specifies by following examples and accompanying drawing thereof:

Fig. 1: existing elevator governor device scheme drawing

Fig. 2: existing elevator governor pulling compartment brake gear scheme drawing

Fig. 3: existing elevator governor brake gear scheme drawing

Fig. 4: existing elevator governor brake gear locking cable wire scheme drawing

Fig. 5: be the utility model device scheme drawing

Fig. 6: be the utility model device combination scheme drawing

Referring to Fig. 5, Fig. 6: a kind of elevator governor safety auxiliary device is by electrical equipment formula speed-controlling device 10, mechanical centrifugal speed-controlling device 20, compartment 1, cable wire 30, brake gear 2, brake Transmission 22 compositions such as grade is characterized in that: at the effect end of brake Transmission 22, one electromagnetic activation pull bar 50 is set, this electromagnetic activation pull bar 50 is subjected to a controller 60 controls, and controller 60 induction end are a weight induction device 70, are arranged on 1 bottom, elevator cage.Wherein governor is to support compartment 1 with a main wheel 40, brake gear 2, and on cable wire 30, main wheel 40 in week the outer rim appropriate location electrical equipment formula speed-controlling device 10 and mechanical centrifugal speed-controlling device 20 are set, with the lifting in the vehicle speed range that allows of control compartment 1, wherein, the centrifugal speed-controlling device 20 of machinery is with the centrifugal pushing block 21 in the main wheel 40, when main wheel 40 surpasses the rotating speed of setting, push brake Transmission 22 open with the increase of centnifugal force, a pair of brake shoes 23 restrictions to interlock on it, brake shoes 23 movable ends are moved down with respect to lock dog 24, come locker cable wire 30, degree of blocking is directly proportional with cable wire 30 pulling force, pulling force is big more, tightness is tight more, and then the brake gear 2 in pulling compartment 1, forms the compartment brake, therefore as long as the elevator speed of a motor vehicle is maintained within a certain range, the lifting brake system of elevator itself promptly has the ability to keep the parking control of each floor.

And main function of the present utility model is the effect end of governor at its brake Transmission 22, be provided with electromagnetic activation pull bar 50, this electromagnetic activation pull bar 50 controller 60 that joins, send 50 actions of current excitation control electromagnetic activation pull bar by controller 60, and the induction end of controller 60 then is one to be arranged on the weight induction device 70 of compartment bottom, detects the load carrying ability in compartments with weight induction device 70, by controller 60 display datas, via controller 60 is done the setting of overweight value.

If compartment moment takes place when bearing overweight load, (the most common on the cargo lift), this controller 60 is received overweight signal control electromagnetic activation pull bar 50 actions of weight induction device 70 immediately, (what electromagnetic activation pull bar 50 adopted is that magnet coil is inhaled the magnetic action principle design, so behind the logical upward electric current, the meeting immediate response, strive for timeliness), and then draw pull the brake Transmission 22, cause brake shoes 23 to move down rapidly toward lock dog 24 faces, folder is pulled and the cable wire 30 of compartment 1 brake gear 2 that locks, thereby has avoided the danger of compartment 1 moment overload tenesmus rapidly.

So the safety that improved elevator, its middle controller 60 can an external signal line and computer 80 join, can write down the load-carrying data, as the foundation of correcting elevator user of service improper use, thereby the improvement method obtains enthusiasm, the purpose of maintenance is convenient in safety.

Claims

A kind of elevator governor safety auxiliary device is by electrical equipment formula speed-controlling device, the centrifugal speed-controlling device of machinery, the compartment, cable wire, brake gear, compositions such as brake Transmission, it is characterized in that: the effect end at the brake Transmission, an electromagnetic activation pull bar is set, this electromagnetic activation pull bar is controlled by a controller, and the controller induction end is a weight induction device, is arranged on the bottom, elevator cage.